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A rebel fighter jumps from a T-55 tank in Misrata August 29. Rebels said they had seized about 150 tanks from a military base near Misrata and prepared to use them as part of a possible operation to take control over the central Libyan city of Sirte, Muammar Qaddafi's last remaining stronghold.

Meanwhile, anti-Qaddafi forces in eastern Libya moved toward Sirte over the weekend, the Monitor reported. With progress from the west as well, fighters appear to be closing in on the Qaddafi stronghold, where some believe the former leader may be hiding. Qaddafi has not been seen for several weeks.